Re: [exim] 4.95-RC0 - SIGSEGV (maybe attempt to write to imm…

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Author: Oliver Heesakkers
To: Jeremy Harris
CC: exim-users
Subject: Re: [exim] 4.95-RC0 - SIGSEGV (maybe attempt to write to immutable memory) & other oddities
Jeremy Harris via Exim-users schreef op 2021-10-10 12:10:
> On 09/10/2021 23:25, Oliver Heesakkers via Exim-users wrote:
>> I've done some more testing and have been reliably able to reproduce
>> the problem. The problem always occurs (in my test setup) when I have
>> av_scanner set up to a clamd TCP socket, regardless whether it's local
>> (127.0.01), remote, IPv4 or IPv6, they all SIGSEGV.
>> When I switch to a local clamd.sock, the problem vanishes.
> Aha. This looks like a FreeBSD platform bug in Exim, hitting the
> use of clamav/tcp.
> If you need a fix for tcp use, are you in a position to compile exim?
> --
> Cheers,
> Jeremy

I always compile my own Exim.

I moved some stuff around and found some RAM to use a local clamd, it's
been SIGSEGV free since then, so personally no, I no longer have a real
need. For the official Exim port though, it might be a good idea to get
a patch in before they update it (no, I'm not the maintainer).